Alternating-current electric regulator



(No Model.) 2 Sheets-Sheet 1.

L. GUTMANN. ALTERNATING CURRENT ELECTRIC REGULATOR.

Patented Mar. 18, 1890.

kmmxxmn 2 Sheets-Sheet 2.

no Model.) w

L. GUTMANN. ALTBRNATING CURRENT ELEGTRIG REGULATOR.

P'a tented Mar. 18, 1890.

UNITED STATES PATENT OFFICE.

LUDWIG GUTMANN, OF FORT IVAYNE, INDIANA.

ALTERNATlNG-CURRENT ELECTRIC REGULATOR.

SPECIFICATION forming part of Letters Patent No. 423,553, dated March18, 1890.

Application filed March 2, 1889. Serial No. 301,802. (No model.)

To all whom it may concern.-

Be it known that I, LUDWIG GUTMANN, a subject of the Emperor of Germany,and a resident of Fort WVayn e, in the county of Allen and State ofIndiana, have invented certain new and useful Improvements inAlternating-Electric-Current Regulators, (Case 26,) of which thefollowing is a specification.

This pressure-compensator has for its object to cause any change ofpressure and current required in any work-circuit to be elfected at thesourceviz., in the generating or inducing apparatus itself-withoutnecessitating the interposition of regulating devices and withoutcutting out or introducing of any coils into the circuit. Thenovelty ofregulation consists in a subdivision of coils and the provision of meansfor changing the relationship of the various subdivisions. The lengthchosen is such as to be fully capable of supplying the necessarypressure for the translating devices in circuit with it, and in thiscase all subdivisions are connected in series. If it is desired todecrease the pressure, means are provided to place one or more of saidsubdivisions in parallel with the rest, whereby the pressure is reducedwithout the removal of any coil, or else to still further reduce thepressure. The connections of the coilmay be placed in parallel with theothers, or else any other subdivision may be reversed, and then thisreversed coil will act in opposition to the rest, with the effect ofstill further reducing the pressure compared with acoil connected inparallel. The means to make these changes are various. It may beacommutator or a re versing-switch, or a combination ofreversingswitches, or connection or pole-changers in one singleapparatus.

In the accompanying figures, Figure 1 represents a converter providedand connected with this regulating device. Figs. 2, 3, and 4 arediagram-connections, showing the different relationships between thecoils. Fig; 5 is a simple reversing-switch.

In Figs. 1, 2, 3, and 4, A is a generator of altern atin g, pulsating,or intermittent currents. B is a converter connected thereto. 0 is theprimary coil of said converter. D is the secondary coil. E arepole-changers; F F, the

work or distributing circuit. G are translating devices in circuit withcircuits F F. I) is the main part of the secondary coil. E arepole-changers in circuit with said coils. H H

II" 11 are contact-blocks connected to terminals'of the coils of aconverter. K and L are subdivisions of the secondary coil. M, N, and Oare contacts on a movable slide R. P P are terminals of the circuit andof the converter-coil D.

In Fig. 5, S is a reversing-switch. T, U, and V are contact-points ofthe switch. W W are contact-levers of switch. X X are terminals ofneighboring secondary coils of the 0011- verter.

In Fig. 1 the primary coil of the converter B is connected in multiplearc with a generator of alternating, pulsating, or intermittentcurrents, and the secondary coil D is connected to the distributing orwork line F F, in which the translating devices G are operated. lengthof wire as to be fully'capable of supplying the necessary pressure. Thetotal length of coil D is. subdivided, andthe subdivisions connected toone another by means of grouping switches or pole-changers E. If thefull pressure is required, then the changers E are so placed that thecoils form a single series, asif they werewound of an uninterruptedwire.

If translating devices G represent lamps of which the brightness isdesired to be lowered, I operate one or more changers E to efiect thedesired alteration by placing one or more of the sub-coils in parallelwith one another, and should the reduction required have to be greaterstill, then I turn or advance changer E still more, whereby theconnections of one or more sub-coils are reversed and react against theremaining part of the coil D.

It may be conveniently mentioned here The secondary coil D has such athat the changes can be either effected, first,

effect of those changes would be to cause them to run slower. It isevident that this means of varying the pressure and current is not onlyapplicable to converters, but also choking magnets, motors, andgenerators.

Figs. 2, 3, and I show clearly the means for operation and changing ofconnection and regulation without any of the coils or subdivisionsneeding to change place or to be cut out of circuit. The ends of coils Dare connected to line F F at the points P P. The ends of thesubdivisions are joined to contact blocks H H H H in such a manner thatthe left two blocks H and H are the terminals of the two starting-wiresof the subcoils K and L,while blocks H and H are the terminals of theother ends of the coils K and L. In contact with blocks H, H, H, and His a slide R, on which are mounted several metal pieces electricallyinsulated from one another. These pieces are M, N, and O. In Fig. 2 itwill be noticed that coil D is connected to the work-circuit F F, inwhich translating devices are connected, and the current would flow fromcoil D to block H, subcoil K, block H, block M on slide R, block H,sub-coil L, block H block N, terminal P, line F, translating devices G,line F, and back to D, or vice versa, the current being alternating.This is the normal position or that for maximum pressure.

Fig. 3 shows the connections of the first reduction in pressure. Here itwill be noticed that sub-coil K and sub-coil L are joined in parallelthrough H and N O. In this position of slide R the current would flowfrom coil D (to block ll, block M of slide, and block H) at the sametime, then to both sub-coils K and L, to blocks H and H, to blocks 0 andN on slide R, to terminal P, to line F, to translating devices G, lineF, and back to coil D, or vice versa. ,To effect a still greater reduction in pressure, the slide is advanced still farther, as shown inFig. at. In this case block N and block 0 of the slide do not touch thesame contact-block as before, and the current flows now from coil D toblock H, sub-coil K, block H, block 0 of slide,block H subcoil L, blockH, block N of slide, terminal P, line F, translating devices G, line F,and back to D, or vice versa. It will be noticed that L is now reversedor connected in opposition to coil K, and the work done by coil Lin thisposition is equivalent to cutting outtwo coils. In these sketches themotion of the slide R is a rectilinear one; but if arranged in a circleor to rotate, the whole mechanism may be arranged into a smallcommutator.

Fig. 5 shows the connection of one of the sub-coils K with areversing-switch. The subcoil K is connected to three contact-points T,U, and V. One end is connected to contactpoint T, the other end tocontact-point U, and a third connection is eifected from contactT tocontact V. At the terminals X X are connected the endsof the neighboringcoils D and L.

In the connection shown in sketch the subcoil K is inclosed normally inthe same direction in the circuit; but when the switch-levers \V \V areplaced in the position indicated by the dotted lines making contact withU and V, then the connection, and therefore, also, the action ofsub-coil K, is reversed. The changes described and explained with thesecondary coil are not restricted to this coil, and can just as well beapplied to the primary coil of a converter.

I claim as my invention- 1. In an alternating-current regulator, thecombination of an electric converter whose primary coils are included ina supply-circuit and whose secondary coil is subdivided, and thesubdivisions thereof permanentlyincluded in a workcircuit and connectedtogether by pole-changers.

2. In an alternating-electriccurrent regulator, the combination of anelectric converter, secondary coils therefor of different lengths, theshortest coils being connected among one another and to the large coilsby pole-changers, and the larger coils being connected tocontact-blocks, and all of said coils being included in a work-circuit.

3. I11 a converter, the combination of acore,

a primary and secondary coil wound thereon, and each subdivided, thesubdivisions of the two coils being connected electrically to oneanother by pole-changers, and the subdivisions of the primary coil beingincluded in the supply-circuit and of the secondary in the work-circuit.

4. In a converter, the combination of a secondary and primary coil, acore common to both, the primary coil being included in a supply-circuitand the secondary being subdivided, the subdivisions being included in awork-circuit and permanently connected to one another by pole-changers.

5. The combination of multiple secondary coils of a converter, all thecoils being connected permanently in a work-circuit, and permanentlyconnected to one another by pole-changers.

6. The combination, in an electric converter, of a subdivided coil, andpole-changers connected in circuit with subdivisions of said coil.

'7. In an alternating-ciu'rent regulator, the combination of secondarycoils, with polechangers connecting together the coils, a work-circuit,and electrical connections between said coils and said work-circuit.

8. In a converter, the combination of a work-circuit, a primary coil,secondary coils in series and connected to said work-circuit, andpole-changers bet-ween and connected to the said coils.

9. In an alternating-electric-current regulator, the combination of awork-circuit, sec- IIO ondary coils of an electric converter, polemyinvention I have signed my name in preschangers connecting the coilstogether in seence of two witnesses, this 2361 day of Februries, andmeans, such as electric conductors, ary, 1889.

for maintaining electric connection between LUDWVIG GrU'IMANN 5 theremaining terminals of the coils and those \Vitnesses:

of the said work-circuit. Y WILLIAM 0. RYAN,

In testimony that I claim the foregoing as T. L'KELLEY.

